Water-circulator for steam-boilers.



E. W. BRAY.

' WATER CIRCULATOR FOR STEAM BOILERS.

APPLICATION FILED NOV- 6, I913.

1,1393% Patented. Mayl1,1915.

2 SHEETSSHEET I.

NORRIS PETERS c0. PHOTO'LITHOH WASHINGTON. D. c.

APPLICATION FILED NOV. 6,1913.

Patented May 11, 1915.

2 SHEETS-SHEET 2.

Swvewtoz THE NORRIS PETERS 60., PHDTO-LITHQ, WASHINGTON. D. C.

nnrrnn stares Parana ora ion EDWARD 11V. EBAY, OF NORFOLK, VIRGINIA.

WATER-CIRCULATOE FGR- STEAM-BOILERS.

Application filed November 6, 1913.

To all whom it may concern Be it known that I, EDWARD W. EBAY, a citizenof the United States, residing at Norfolk, in the county of Norfolk andState of Virginia, have invented certain new and useful Improvements inWater-Circulators for Steam-Boilers, of which the following is aspecification.

This invention relates to improvements in water circulators for steamboilers, and particularly to a means whereby the heating and water spaceis divided at or near the combustion chamber.

The object of the invention is to provide means whereby the heatingsurface may be so divided as to use the same for causing the water tocirculate from the after or furnace door end of the boiler in thebottom, to the forward or combustion chamber end of the boiler, and uparound the combustion chamber to the water line, thence to the after endof the boiler where it cools and drops toward the bottom, thus creatinga continuous circulation.

My invention is designed to accomplish these features by the use ofnovel and original means fully described herein, and illustrated by thedrawings. Such parts as are not pertinent to my invention, have beenomitted from the drawings.

Figure 1, is a side elevation of a double furnace boiler, the shellbroken away so as to show the furnace, bafiie plate and pipe. Fig. 2, isa section taken at y@ of Fig. 1.

Similar reference characters refer to similar parts.

Figs. 1, and 2, show one form of my invention embodied in a doublefurnace boiler, in which I provide a baffle plate 1, at the tube or finesheet end of the combustion chamber, the said plate being secured to,and radiating from the combustion chamber to the shell of the boiler,and secured thereto by suitable means 2. The baffle plate 1, in thisform of construction, is preferably in four sections, though I am notconfined to any number of sections, but may vary the number according torequirements. The bafiie plate 1, is provided near'the shell 3, withapertures 4, for the purpose hereinafter explained in the operation ofmy invention. In Fig. 1, I also show a pipe 5, located near the shell 3,extending from the baffle plate 1, lying parallel with the furnace 6,the said Specification of Letters Patent.

Patented May 11, 1915.

Serial No. 799,561.

.. be also hereinafter explained in the operapart heat to thesurrounding water which at once begins to expand, causing its gravity tolessen, thereby naturally forcing the water upward by the body of waterlying on the bottom of the boiler under the furnaces, which will flowthrough the apertures 41:, in the baffle plate 1, and the apertures 7,in the pipe 5, and as this water is heated, continues to ascend, andwill flow over the combustion chamber top in the direction of the afteror furnace door end of the boiler, which is the coolest of the heatingsurfaces of the boiler, and then as its gravity increases, will begin toflow to the bottom due to its increased gravity, thus completing thecycle as indicated by the arrows.

It will be readily understood that a great variety of modifications maybe made in details of construction, and arrangement of parts, due to thevaried types of boilers and their arrangement of furnaces, withoutdeparting from the spirit of my invention, and not being aware of anydevice using a baffle plate radiating from the combustion chamber to theshell of the boiler for this purpose, I therefore claim broadly, thisfeature.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is

1. In a steam boiler and water circulator therefor, the combination witha furnace and combustion chamber, of means provided with an apertureradiating from said combustion chamber to the shell of the boiler, forthe purpose specified.

2. In a steam boiler and water circulator therefor, the combination of afurnace and combustion chamber, and means provided with an apertureextending from the combustion chamber to the shell of the boiler fordividing the water space and heating pipe being provided with apertures7, will surface at or near the back tube and flue sheet at thecombustion chamber end of the the sides and back thereof to the Water 10boiler, for the purpose specified. line.

3. In a circulator for steam boilers, the Signed at Norfolk, in thecounty of Norcombination With a furnace and combustion folk, and Stateof Virginia, this 5th day of chamber, of a bafiie plate radiating fromthe November, A. D. 1913.

combustion chamber to the shell of the EDWARD W. BRAY. boiler, and meansin said baffle plate through l/Vitnesses:

which the Water circulates from under the W. Gr. COLLINGS,

furnace and combustion chamber, up around ROBERT E. TAPLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

